Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

What is difference between hashset and hashmap in java?

1007

What is collection sort in java?

932

What is toarray method in java?

1093

What is class array in java?

1049

What should I import for arraylist in java?

1033

What are the types of collections in java?

1053

How does arrays sort work in java?

1001

What is ordered map in java?

993

What is array sorting in java?

1053

What is pangram in java?

1010

What sorting algorithm does javascript use?

980

What is java util collection?

1080

Can we sort array in java?

943

Can you sort a list in java?

979

What is a priority queue java?

985

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Un-Answered Questions { Core Java }

What is tcp and udp?

1010

Difference between keyword and identifier.

1027

Is singleton thread safe in java?

975

How to make a non daemon thread as daemon?

1056

Explain Basics of OOP Language in java

1053

What is a two-pass assembler?

1049

What are passing parameters?

1081

What do you understand by the bean persistent property?

1006

How can a gui component handle its own events in java programming?

1040

Can java hashmap have duplicate keys?

1026

Explain the usage of this with constructors?

1024

What is finalize() function in java?

1009

What’s meant by anonymous class?

1078

Difference between doublesummarystatistics, intsummarystatistics and longsummarystatistics ?

984

What is the importance of static variable?

1110

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